I would like to ask: can the Y, yn0 type oil transformer be replaced with a D, yn11 type one directly?
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SOS: I have a question regarding Y and yn0 transformers; I want to replace them with D-type transformers. Can the yn11 transformers be replaced directly? Thank you first
It probably won’t work; insulation needs to be taken into consideration
It mainly depends on your voltage level and transformation ratio! ! But it’s not allowed if there are transformers connected in parallel! ! Where is it used? ? ? It seems that transformers of type D, Yn11 aren’t used very often, right? Why was it decided to switch to this type?
The advantage of the D,yn11 connection is that the third harmonics can be eliminated on the primary side. For parallel transformers, it’s definitely not possible to replace just one of them, as transformers with different voltage groups cannot operate in parallel.
Parallel operation is definitely not possible. It must have the same wiring connection group as other transformers.